Error: file_preallocate in logs

[Tom Talpey]

My guess is that it's an NFS server issue, but you'd need an NFS
packet trace to verify. Or maybe just run a modern NFS server and
compare.

In any event, my other guess is that it's harmless. Failing to extend
a file doesn't actually lose message data, and the lib-storage code
for mdbox preallocation ignores several other expected errors.


On 10/9/2017 6:09 PM, Ricardo Branco wrote:
> Mail server runs centos 6.9 and so does the nfs servers, it is using nfsv3 on mount, underlining fs is xfs.
> 
> On 9 October 2017 23:00:42 BST, Tom Talpey <tom at talpey.com> wrote:
>> What OS are you running doveadm on, and what type of NFS server is
>> hosting the storage?
>>
>> One possibility on (much) older NFS servers is that some of them refuse
>> to extend a file when setting the file length to a larger value than
>> the current size. However, that's a really obsolete behavior, not seen
>> on anything in the decade, and isn't likely to return OPNOTSUPP.
>>
>> On 10/9/2017 8:29 AM, Ricardo Branco wrote:
>>> I am getting lots of these messages in my imapd.log or while I am
>> doing
>>> mailbox operations on the terminal.
>>>
>>> All my mailboxes are stored on NFS and ive set the nfs locking params
>> in
>>> the config, only one mailserver accessing this share.
>>>
>>> Any ideas why this would be happening?
>>>
>>>
>>> doveadm(ops): Error:
>>>
>> file_preallocate(/var/vmail/ops/mdbox/storage/.temp.1507551663.P21424Q109M878872.posti2.dc1.wenn.com)
>>
>>> failed: Operation not supported
>>>
>>>
>